Stovepipe and thimble.



A. P. MOGUIRK.

STOVEPIPE AND THIMBLE.

APPLICATION FILED Nov. so, 190B.

Eatented June 14, 1910. Z7 l j7ll xamx.

@NITE STOVEPIPE AND THIMBLE.

Specification of Letters Patent.

Patented J une 14, 1910.

Application filed November 30, 1908. Serial No. 465,006.

To all 'whom it may concern:

Be it known that I, AMBRosE l?. Mc- GUIRK, a citizen of the UnitedStates, and a resident of Davenport, in the county of Scott and State ofIowa, have invented a new and Improved AStovepipe and Thimble, of whichthe following is a full, clear, and exact description.

|This invention relates to stove pipes and thimbles for securing pipesections in chimney or Hue openings, and more particularly to a thimbleadapted to be inserted in the Hue opening and having outwardly extendingend Hanges arranged to receive therebetween at the outside of thethimble a layer or coating of cementitious material for securing thethimble in place, the latter' having cut away parts forming tongueswhich are outwardly disposed and are embedded within the cementitiousmaterial. The thimble has studs or projections which can be removablyengaged in slots or grooves of stove pipe sections to hold the sectionssecurely in theJ thimble.

An object of the invention is to provide a simple, inexpensive anddurable thimble and stove pipe joint for connecting a stove with achimney or Hue, by means of which the joints or connections can berendered proofv against leakage therethrough of smoke or the gases ofcombustion, and which is so constructed that the parts can be easilyassembled and taken apart.

A further object of the invention is to provide a thimble which can beso securely arranged within the Hue or chimney opening and in which theend stove pipe section can be removably locked, that all danger ofleakage of smoke, soot or gases of combustion through the joint isobviated, and which prevents the transmission of excessive heat fromwithin the chimney to wood-work or other adjacent material at theoutside of the chimney, thus preventing the danger of fire.

rIhe invention consists in the construction and combination of parts tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis speci- Hcation, in which similar characters of reference indicatecorresponding parts in all the views, and in which- Figure 1 is alongitudinal section of a part of a chimney or Hue showing an embodimentof my invention applied thereto; Fig. 2 is a edge transverse section onthe line 2-2 of Fig. 1; Fig. 3 is a longitudinal section of a cap bymeans of which the Hue opening can be closed when the stove pipe isremoved; Fig. a is a longitudinal section of a part of a chimney or Hueshowing a modified form of my invention applied thereto; and Fig. 5 isaside elevation of a part of a chimney and a stove pipe section offurther modified form.

Before proceeding to a more detailed explanation of my invention, itshould be clearly understood that the same is particularly useful forconnecting stoves and chimneys or Hues where the stoves are set up atpoints remote from the chimneys and do not communicate directlytherewith. In such cases it is customary to insert in the Hue opening athimble into which in turn is inserted the end pipe section of the stovepipe through which the smoke and gases escape from the stove. Unless theljoints of the pipe sections and the connection between the pipe andthimble are suitably tight there is considerable danger that smoke, Huegases and soot will escape into the room, with the obvious unpleasantresults both as to the comfort and health of the occupants of the room.It is of course undesirable to attach the stove pipe sections to eachother and to the thimble permanently, as it is frequently necessary toremove these parts in order to clean them, or if for example, it isdesired to remove the stove during the warm season of the year. closethe Hue opening, means of a cap which thimble.

I provide a thimble which is so securely mounted in the Hue opening thatleakage around the thimble is impossible, and which is so constructedthat it receives the extremity of the end stove pipe section so securelythat leakage between the thimble and the section is obviated'. Theconstruction however, permits and this is done by is inserted into thethe end section to be easily inserted and withdrawn without loss oftime.

Referring more particularly to the drawings, 11 represents the Hueopening of a chimney or Hue 10.

I provide a thimble 13 fashioned from sheet metal or other suitablematerial and preferably slightly tapered. At the inner the thimble hasan outwardly extending, substantially annular flange 14 ar- It is thenalso necessary to section.

work or the like.

holding the thimble in place.

ranged to engage at the inside of the opening 11 near the inner edge ofthe same. At the outer edge which projects from the opening 11 thethimble has a further outwardly extending flange 15 which is slightlyrearwardly disposed to engage at the outside of the chimney around theouter edge of the opening 11. The flange 15 is also annular in form andis somewhat larger than the flange 14. It may be ornamented if sodesired, in any suitable manner. A coating or layer 16 of eementitiousmaterial such for example as cement, plaster o'r the like, is locatedbetween the flanges 14 and l5 at the outside of the thimble and engagesat the inner surface of the opening 11 to hold the thimble securely inplace. The cementitious material at the same time acts as a heatinsulator, to prevent heat from within the chimney being transmitted tothe outside of the same there to ignite wood- To increase the insulatingproperty of the same it may have asbestos or 'similar materialincorporated therein. The thimble has a plurality of cut away partsforming tongues 17, which are outwardly disposed and are embedded in thecementitious material as is shown most clearly in Fig. 1, for theobvious purpose of holding the thimble in place. The end stove pipesection is tapered similarly to the thimble and is arranged to Vbeinserted therein so that it lits snugly within the thimble. The latterhas a cut away part 19 forming a stud or projection 2O adapted to beengaged by an inclined groove or slot 21 of the pipe section;consequently, if the latter is inserted into the thimble so that theprojection 20 engages the groove, a twisting or rotary movement of thepipe section serves to draw it farther into the thimble to jam ittightly in place and to insure a tight oint between the points. The endpipe section 18 can be replaced by a cap 22 having a groove or slot 23adapted to engage the projection 20 and having the outer end closed by awall 24 which may be ornamented in any suitable manner.

In Fig. 4 is shown a modified form of my invention, in which the thimble25 has flanges 26 and 27 similar, respectively to the flanges 14 and 15,and receiving therebecementitious material 28. The tongues 17 aredispensed with however, and bolts 29 or the like are inserted throughsuitable openings in the Athimble and are driven into the chimney orflue wall to assist in The ends 30 of the members 29 project inwardlywithin the thimble and are adapted to be engaged by an end pipe section31, and thus act as stops to limit the insertion into the thimble of theIt will be understood that the -projection -20 performs a like functionfor the pipe section 18. The pipe section 31, at a kin point remote fromthe edge, has an outwardly disposed bead 32 adapted to engage at theouter rim of the thimble and thus also serves as a stop to limit theinsertion of the pipe into the thimble. The latter has at the end atongue extension 33 which has undercut slots 34, adapted to receive oneor the other of the heads 30. Thus, after the pipe section 31 has beeninserted into the thimble as far as possible, a rotary movement of thepipe section causes one of the projecting members 29 to be received byone of the slots 34 so that the pipe section cannot be withdrawn withoutagain releasing it by a reverse turning movement.

In the form of my invention shown in Fig. 5, the thimble 35 has flanges36 and 37, and outwardly disposed tongues 38 adapted to be embedded inthe cementitious material;

vThe pipe section 39 which is inserted into the thimble has a bracket`40, secured thereto by a rivet 41 or in any other suitable manner, andprovided with spaced sleeves 42. The thimble has-a strip 43 securedthereto by a rivet 44, and extending through a suitable opening in theflange 36 so that it presents a sleeve 45 at the outside ofthe flange37. The sleeve 45 is received between the sleeves 42 when the pipesection is inserted within the thimble, and the openings in the sleevesare brought to register so that a locking member or pin 46 can beinserted in the sleeves to hold the pipe sections in position.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent:

1. A tapered thimble adapted to be located in a flue opening and havingat each lend an outwardly extending flange, the flange lat the inner endof the thimble being of a diameter equal to that of the Hue open-ing andthe flange at the outer end being of greater diameter than that of saidopening, a layer of cementitious material on the outer surface of thethimble between the anges thereof and engaging the inner surface of theflue opening and the outer surface of the chimney around said opening, atapered stove pipe section ltting in the thimble and adapted when forcedtherein to closely contact therewith to form a tight joint, and meansfor locking the section in the thimble.

2. A tapered thimble adapted to be inserted in a flue opening and havingat its inner end a flange about equal in diameter to the flue openingand at the outer end a flange of greater diameter than said opening,said thimble being provided intermediate of the flanges with outwardlydisposed and oppositely projecting tongues, a tapered stove pipe sectionfitting in the thimble, and interlocking means on the thimble andsection for locking the section in the thimble.

3. A tapered thimble adapted to lbe located a flue -opening and havingat each `end an outwardly extending ange, the flange at In testimonywhereof I have signed my the inner end of the thimble being of a dinameto this specification in the presence of 10 almer equal tpl that of the1lue operfling and two subscribing witnesses.

t e ange at t e outer en ein@ o greater diameter than that of the saidopenng, said AMBROSE PETER MCGUIRK thimble being provided intermediateof the Witnesses:

flanges with outwardly disposed and oppo- A. W. KINKEAD,

sitely projecting tongues. l CEAS. A. GREGG.

